BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 353 39.5%
2 United States 177 19.8%
3 Netherlands 161 18%
4 Germany 105 11.7%
5 Sweden 18 2%
6 Canada 16 1.8%
7 Korea, Republic of 10 1.1%
8 Russia 7 0.8%
9 United Kingdom 7 0.8%
10 Norway 6 0.7%
11 France 6 0.7%
12 Ireland 4 0.4%
13 Poland 3 0.3%
14 India 3 0.3%
15 South Africa 3 0.3%
16 Luxembourg 2 0.2%
17 Malta 2 0.2%
18 Ghana 2 0.2%
19 Finland 2 0.2%
20 Taiwan 2 0.2%
21 Thailand 2 0.2%
22 Hong Kong 1 0.1%
23 Israel 1 0.1%
24 Singapore 1 0.1%